YOU SAID:

My brother likes his giant collection of toys

INTO JAPANESE

私の兄はおもちゃの巨大なコレクションが好きです

BACK INTO ENGLISH

my brother likes a huge collection of toys

INTO JAPANESE

私の兄はおもちゃの膨大なコレクションが好きです

BACK INTO ENGLISH

my brother likes a huge collection of toys